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Boston Red Sox at St. Louis Cardinals

MLBregular • 2026 Season
completed
Cardinals logo
Cardinals
St. Louis
3
vs
Red Sox logo
Red Sox
Boston
9
STL 55%45% BOS
Prediction Confidence:
Moderate

St. Louis Cardinals 55% to win. The biggest signal favoring Cardinals:

  • Home Field Advantage. Base home field advantage applied (no detailed stats available)

What would change the call

Win probability as of kickoff if a leading factor were even

  • If the home-field edge were neutral: STL 52% (−3)

Win probability movement

STL home win probability as the model updated before the game

Home win probability movement61%55%50%Apr 9Apr 12

Labels mark updates of 5 points or more, named by the factor that moved most.

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VenueBusch Stadium
St. Louis, Missouri

Team Comparison

Head-to-head snapshot based on our model inputs

Red Sox (away)
Cardinals (home)
45%
Win probability
55%
0
High-impact factors
0
0
Players ruled out
0

Post-Game Analysis

How our model performed

The Red Sox defeated the Cardinals 9-3.

Our model predicted the Cardinals would win with 55% confidence, but the Red Sox won against the model's expectation. Results like this help us refine the model.

Looking at the factors our model weighed:

  • Home Field Advantage favored the Cardinals and was a notable factor: Base home field advantage applied (no detailed stats available)
  • Head to Head was neutral and a contributing factor: No recent head-to-head history available
  • Recent Form was neutral and a contributing factor: No recent form data available

This analysis was generated from our model's pre-game assessment compared against the actual result. Factor accuracy helps improve future predictions.

Red Sox won 3-9

Red Sox won by a solid margin

Prediction IncorrectWe predicted Cardinals at 55%

Key Factors

What's driving the win probability for this game

  • Home Field AdvantageFavors St. Louis Cardinals
  • Head to HeadNeutral
  • Recent FormNeutral
  • InjuriesNeutral
  • Rest DaysNeutral
  • Weather ImpactNeutral
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What's Driving This Game

Each factor's contribution to the final win probability

BOS
STL
Home Field Advantage
Favours BOS|Favours STL

Premium feature: factor breakdown

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Understanding the win probability calculation

1 factor not shown (insufficient data)

Model version: 1.0.0 • Calculated: 4/12/2026, 8:45:00 AM

Key Players

Red Sox

Tanner HouckSP
Sonny GraySP
Jake BennettSP
Connelly EarlySP
Patrick SandovalSP

Cardinals

Michael McGreevySP
Kyle LeahySP
Chase HamptonSP
Quinn MathewsSP
Andre PallanteSP

Learn About Our Analysis

Learn about the factors behind our predictions

Frequently Asked Questions

Cardinals has a 55% win probability, while Red Sox has a 45% win probability based on our analysis.

Our model considers weather conditions, offensive and defensive efficiency, rest days, injury impact, and historical performance.

This game is being played at Busch Stadium in St. Louis, Missouri.

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